Finding the Fourth Proportional to 57,386.78, 79,193.69 and 31,892.34

Step by Step Solution

1. Step 1: Write the proportion equation
   57,386.78 : 79,193.69 = 31,892.34 : x
2. Step 2: Convert to fraction form
   57,386.78/79,193.69 = 31,892.34/x
3. Step 3: Cross multiply
   57,386.78x = 79,193.69 × 31,892.34
4. Step 4: Simplify right side
   57,386.78x = 2,525,672,087.33
5. Step 5: Solve for x
   x = 2,525,672,087.33/57,386.78
6. Step 6: Final answer
   x = 44,011.39